You don’t need an expensive sensor for monitoring projects or as a safety precaution. The Flame sensor promises high sensitive to the flame spectrum and it can easily detect a flame or the wavelength of a light source in the range of 760nm-1100nm. The tiny sensor has a price of $6.39.

Based on the LM393 voltage comparator chip, the sensor works with 5V voltage input for analog pin, while for digital pin it requires only 3.3V. The sensor can be easily integrated with Arduino microcontroller and program it to detect the fire in a room or for a safety system to turn on/off the devices.

Although I don’t suspect many makers will actually take this project on and use it in the prototyping room. But even so, I’m glad that someone thinking of it and has been done for us.

The fourth steps that let you build an application that can detect the fire are:

Step 1: Start knowing the Flame Sensor pins and how it works.
Step 2: Test the sensor. You can use a lighter.
Step 3: Interface it with Arduino microcontroller.
Step 4: Writing the sketch.

For the full post to see the detailed steps and download the sketch click here.